Publication Date:
2012
Short description:
A new integration algorithm for the
von-Mises elasto-plastic model / Artioli, E., Auricchio, F., Beirão Da Veiga, L. - In: Mechanics, Models and Methods in Civil Engineering / [a cura di] Frémond Michel; Maceri Franco. - HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY : Springer, 2012. - ISBN 978-3-642-24638-8. - pp. 223-258 [10.1007/978-3-642-24638-8_15]
abstract:
We introduce a new numerical time integration scheme, in the
framework of associative von-Mises plasticity with linear kinematic and
isotropic hardening. The new procedure is based on the model reformulation
in terms of an augmented stress tensor and on the adoption of an integration
factor; the integration of the model makes use of exponential maps. A
consistent number of numerical tests enlighten the superior behaviour of the
new exponential-based technique, by means of comparison with classical return
map algorithms based either on backward Euler or generalized midpoint
integration rules.
framework of associative von-Mises plasticity with linear kinematic and
isotropic hardening. The new procedure is based on the model reformulation
in terms of an augmented stress tensor and on the adoption of an integration
factor; the integration of the model makes use of exponential maps. A
consistent number of numerical tests enlighten the superior behaviour of the
new exponential-based technique, by means of comparison with classical return
map algorithms based either on backward Euler or generalized midpoint
integration rules.
Iris type:
Capitolo/Saggio
List of contributors:
Artioli, E; Auricchio, F; Beirão Da Veiga, L
Book title:
Mechanics, Models and Methods in Civil Engineering